Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 707b70a7e7e4018333c8a74e74701c5122a26b1dbb7c03722e612c8d0e479066:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^